Insulin: The Miracle Extract That Changed Everything

Before insulin, a diagnosis of type 1 diabetes was essentially a death sentence. Treatment meant starvation diets, snake oil “cures,” and desperate families. In this episode of The Health Deli, we dig into the wild, dramatic, and sometimes messy history of insulin — from dog pancreas experiments and “brown goo” injections to Nobel Prize drama and 23,000 animals for a single pound of medication.

We trace how a 2AM idea led to one of the greatest medical breakthroughs of the 20th century, how insulin evolved from animal extracts to genetically engineered biosimilars, and how today’s pumps and continuous glucose monitors are getting us closer to an artificial pancreas.

From tasting urine in ancient medicine to closed-loop systems in 2025, this is the story of how insulin didn’t just treat diabetes — it changed humanity.